US5372878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slackened or creased fibrous sheet
Assignee: Yamasa Momi Kikaku Co Ltd
•
Filing: 1992-06-23
•
Granted: 1994-12-13
•
Expires: 2012-06-23
Abstract
Abstract Paper having a relatively high rigidity including Japanese paper and fibrous sheet such as vegetable fibrous sheet and nonwoven fabric are used as base materials for finishing without subjected to any processing while fibrous sheets including some sorts of Japanese paper and spunbonded nonwoven fabric being high in softness and flexibility and bulky, and machine-made paper being lightweight and thin, and moreover having a relatively high rigidity are incapable of or nondurable to physical processing such as beating, bending and crumpling, so that the pretreatment or preliminary processing (primary processing) is applied to these sheets for use as base materials in such a manner that they are resin-treated or have plastic material, elastomer film, woven cloth or one selected from a group of fibrous sheets similar to the above attached thereto so as to convert them into composite sheets. The obtained base materials are subjected to the physical processing, whereby the fibrous texture of the base materials for finishing is slackened, and resin-treated for strengthening, whereby the base materials for finishing are improved in strength and provided with the resilience, water repellency, bulkiness, decorative effect and so forth, so that they can be utilized for daily goods, personal belongings, clothing, interior decoration and so forth when finished. The present invention relates to the raw materials thereof.
Inventors
- 👤 Yoshimitsu Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:41
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/38; D21H19/385; B; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/45; D06M11/73; D06M11/76; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/37; D06M15/564; D06M17/00; D06M17/04; D06M17/10; D21H19/44; D21H19/62; D21H19/66; D21H19/72; D21H19/74; D21H21/00; D21H21/14; D21H21/28; D21H21/285; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/27; Y10T428/273; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2352; Y10T442/2369
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
88 words
A slackened or creased fibrous sheet, said sheet comprising: a substrate having a fibrous structure and selected from the group consisting essentially of paper, vegetable fibrous sheets and nonwoven fabric, said substrate having a basis weight of greater than 50 g/m 2 , said substrate having been subjected to mechanical processing for loosening said fibrous structure; and a resin material dispersed in said substrate, said resin material dispersed in a non-uniform density through said substrate, said resin material being provided for increasing the relative strength of said substrate.
Claim 2
Dependent Claim
88 words
A slackened or creased fibrous sheet, said sheet comprising: a substrate having a fibrous structure and selected from the group consisting essentially of paper, vegetable fibrous sheets and nonwoven fabric, said substrate having a basis weight of greater than 50 g/m 2 , said substrate having been subjected to mechanical processing for loosening said fibrous structure; and a resin material dispersed in said substrate, said resin material dispersed in a non-uniform density through said substrate, said resin material being provided for increasing the relative strength of said substrate.
Claim 3
Dependent Claim
19 words
The sheet recited in claim 1 wherein said resin material is concentrated at loosened portions of said fibrous structure.
Claim 4
Dependent Claim
22 words
The sheet recited in claim 1, further comprising a laminated layer disposed on either a top or bottom surface of said substrate.
Claim 5
Dependent Claim
22 words
The sheet recited in claim 1 wherein said resin material has pigmentation or dyes to provide a color pattern to said substrate.
Claim 6
Dependent Claim
35 words
The sheet recited in claim 1 wherein said resin material further comprises particles selected from the group consisting essentially of light reflecting particles, infrared reflecting particles, ceramic, mica, shell powder, glass beads and film particles.
Claim 7
Dependent Claim
28 words
The sheet recited in claim 1 wherein said substrate has a flexibility which varies along said substrate, said flexibility being dependant on the impregnation of said resin material.
Claim 8
Dependent Claim
29 words
The sheet recited in claim 1 wherein said substrate has a flexibility which varies along said substrate, said flexibility not being dependant on the impregnation of said resin material.
Claim 9
Dependent Claim
25 words
The sheet recited in claim 1 wherein said resin material is a dilution of a polyurethane, said polyurethane containing a pigment, calcium carbonate, and silicone.
Claim 10
Dependent Claim
17 words
The sheet recited in claim 8 wherein said calcium carbonate has an average particle diameter of 1μ.
Claim 11
Dependent Claim
19 words
The sheet recited in claim 8 wherein said polyurethane is diluted in methyl ethyl ketone or methyl ethyl toluene.
Claim 12
Dependent Claim
26 words
The sheet recited in claim 1 wherein said resin liquid is initially coated on said substrate at a rate of 70 to 80 g/m 2 .
Claim 13
Dependent Claim
23 words
The sheet recited in claim 1 wherein said resin material is an acrylic emulsion, said acrylic emulsion containing a pigment and aluminum hydroxide.
Claim 14
Dependent Claim
17 words
The sheet recited in claim 12 wherein said aluminum hydroxide has an average particle diameter of 1μ.
Claim 15
Dependent Claim
19 words
The sheet recited in claim 12 wherein said acrylic emulsion has a moduls of 200 Kg/cm 2 or more.
Claim 16
Dependent Claim
18 words
The sheet recited in claim 1 further comprising a laminated layer disposed between two sheets of said substrate.
Claim 17
Dependent Claim
105 words
A slackened or creased fibrous sheet, said sheet comprising: a substrate having a fibrous structure and selected from the group consisting essentially of paper, vegetable fibrous sheets and nonwoven fabric, said substrate having a basis weight of less than or equal to 50 g/m 2 , said substrate having been subjected to mechanical processing for loosening said fibrous structure; a laminated layer disposed on either a top or bottom surface of said substrate; and a resin material dispersed in said substrate, said resin material dispersed in a non-uniform density through said substrate, said resin material being provided for increasing the relative strength of said substrate.
Claim 18
Dependent Claim
105 words
A slackened or creased fibrous sheet, said sheet comprising: a substrate having a fibrous structure and selected from the group consisting essentially of paper, vegetable fibrous sheets and nonwoven fabric, said substrate having a basis weight of less than or equal to 50 g/m 2 , said substrate having been subjected to mechanical processing for loosening said fibrous structure; a laminated layer disposed on either a top or bottom surface of said substrate; and a resin material dispersed in said substrate, said resin material dispersed in a non-uniform density through said substrate, said resin material being provided for increasing the relative strength of said substrate.
Claim 19
Dependent Claim
19 words
The sheet recited in claim 16 wherein said resin material is concentrated at loosened portions of said fibrous structure.
Claim 20
Dependent Claim
22 words
The sheet recited in claim 16 wherein said resin material has pigmentation or dyes to provide a color pattern to said substrate.
Claim 21
Dependent Claim
35 words
The sheet recited in claim 16 wherein said resin material further comprises particles selected from the group consisting essential of light reflecting particles, infrared reflecting particles, ceramic, mica, shell powder, glass beads and film particles.
Claim 22
Dependent Claim
28 words
The sheet recited in claim 16 wherein said substrate has a flexibility which varies along said substrate, said flexibility being dependant on the impregnation of said resin material.
Claim 23
Dependent Claim
29 words
The sheet recited in claim 16 wherein said substrate has a flexibility which varies along said substrate, said flexibility not being dependant on the impregnation of said resin material.
Claim 24
Dependent Claim
25 words
The sheet recited in claim 16 wherein said resin material is a dilution of a polyurethane, said polyurethane containing a pigment, calcium carbonate, and silicone.
Claim 25
Dependent Claim
17 words
The sheet recited in claim 22 wherein said calcium carbonate has an average particle diameter of 1μ.
Claim 26
Dependent Claim
19 words
The sheet recited in claim 22 wherein said polyurethane is diluted in methyl ethyl ketone or methyl ethyl toluene.
Claim 27
Dependent Claim
26 words
The sheet recited in claim 16 wherein said resin liquid is initially coated on said substrate at a rate of 70 to 80 g/m 2 .
Claim 28
Dependent Claim
23 words
The sheet recited in claim 16 wherein said resin material is an acrylic emulsion, said acrylic emulsion containing a pigment and aluminum hydroxide.
Claim 29
Dependent Claim
17 words
The sheet recited in claim 26 wherein said aluminum hydroxide has an average particle diameter of 1μ.
Claim 30
Dependent Claim
19 words
The sheet recited in claim 26 wherein said acrylic emulsion has a modulus of 200 Kg/cm 2 or more.
References Cited (Backward Citations)
JPS596953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-12 | 1998-06-13 | 1998-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-12 | 2002-06-13 | 2002-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-12 | 2006-06-13 | 2006-12-13 | $7700.00 | Window Closed / Lapsed |